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1984 Mercury Cougar

US · Compact Cars

The 1984 Mercury Cougar is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine
Varies by configuration: 2.3L 4-cylinder turbocharged (FFS,TRBO), 2.3L 4-cylinder turbocharged (FFS,TRBO) CA model), 3.8L 6-cylinder (FFS), 3.8L 6-cylinder (FFS) CA model), 5.0L 8-cylinder (FFS), 5.0L 8-cylinder (FFS) CA model)
Transmission
Varies by configuration: Automatic, Manual
Fuel
Gasoline
Economy
16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
2.3L 4-cylinder turbocharged (FFS,TRBO), 2.3L 4-cylinder turbocharged (FFS,TRBO) CA model), 3.8L 6-cylinder (FFS), 3.8L 6-cylinder (FFS) CA model), 5.0L 8-cylinder (FFS), 5.0L 8-cylinder (FFS) CA model)
Combined Economy
16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km) combined
Transmission
Automatic, Manual
Market: US·Switch units to convert the figures shown.
Compare 1984 Mercury Cougar ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 2.3L 4-cylinder turbocharged (FFS,TRBO), 2.3L 4-cylinder turbocharged (FFS,TRBO) CA model), 3.8L 6-cylinder (FFS), 3.8L 6-cylinder (FFS) CA model), 5.0L 8-cylinder (FFS), 5.0L 8-cylinder (FFS) CA model)
Displacement2.3 L to 5.0 L
Cylinders4 to 8
AspirationTurbocharged
Fuel typeGasoline

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionVaries by configuration: Automatic, Manual
Gears3 to 5

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km)
City14 mpg (16.8 L/100 km) to 17 mpg (13.8 L/100 km)
Highway20 mpg (11.8 L/100 km) to 24 mpg (9.8 L/100 km)

Our sources do not publish these for this vehicle: Power, Torque, Drivetrain, Electric range, Battery capacity. We leave them out instead of estimating.

Trims and configurations

10 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 1 recall campaign for this model year. Last checked November 10, 2026.

  • 83V134000: SEAT BELTS:FRONT:ANCHORAGE

    THE BOLTS THAT ATTACH THE D-SHAPED RING FOR THE SHOULDER BELT ARE INADEQUATELY SUPPORTED BY THE MATERIAL IN WHICH THEY ARE MOUNTED. THE ATTACHMENT DOES NOT COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES".

    Remedy: DEALERS WILL INSTALL NEW ATTACHING HARDWARE TO IMPROVE THE STRENGTH OF THE MOUNTING.

    Reported December 20, 1983. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved October 25, 2026 · US Government public data
  • NHTSA vPIC · retrieved October 25, 2026 · US Government public data

Source checked: October 25, 2026

Data verified: October 25, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

Related vehicles

  • Varies by configuration: 2.3L 4-cylinder turbocharged ((FFS,TRBO) CA model), 3.8L 6-cylinder ((FFS) CA model), 2.3L 4-cylinder turbocharged ((FFS,TRBO)), 3.8L 6-cylinder ((FFS)), 5.0L 8-cylinder ((FFS)) · RWD
    19 mpg (12.4 L/100 km) to 17 mpg (13.8 L/100 km)

Frequently asked questions

What engine does the 1984 Mercury Cougar have?

Varies by configuration: 2.3L 4-cylinder turbocharged ((FFS,TRBO)), 2.3L 4-cylinder turbocharged ((FFS,TRBO) CA model), 3.8L 6-cylinder ((FFS)), 3.8L 6-cylinder ((FFS) CA model), 5.0L 8-cylinder ((FFS)), 5.0L 8-cylinder ((FFS) CA model). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 1984 Mercury Cougar?

Combined fuel economy is 16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km), as published by the source shown in the specification table.

Are there recalls for the 1984 Mercury Cougar?

NHTSA lists 1 recall campaign for this model year (last checked November 10, 2026). Details are in the Recalls section.